If you're applying for funding via the EU Horizon program have a look at this: the European Commission has posted a list of common do's & don'ts.

https://rea.ec.europa.eu/news/common-mistakes-avoid-when-applying-horizon-europe-funding-2023-02-09_en?fbclid=IwAR1VPryjDAEwatV6RAs1TpW_rRKxGl9TvxrQk5lCgM2fV5q_ZIKOnxRPpZ8